uneven breast tenderness?

[Jaelithe]

So it's finally started!  Sooner than I expected to be honest, but one thing I've noticed is that the left one is definitely a lot more tender than the right.  The left feels as though there were a massive bruise right behind the nipple, the right only has a little pain if I put pressure on it just right.  Is that normal?

[Flan]

Yeah one can expect development to happen on and off at different rates and go as far as different sizes between the two breasts.